Climate averages 1991–2020
Alcalá de Henares weather
in September.
A warm, fairly dry month: the 4th warmest and the 4th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Alcalá de Henares: daytime highs average 26.6°C and nights cool to about 14.4°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 28 mm of rain on roughly 5 days, which makes September a fairly dry month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 30 min on an average September day.
The nearest other city in this atlas is Torrejón de Ardoz (10 km away). In September its highs average 26.5°C, about as warm as Alcalá de Henares, with 23 mm of rain.
Among the 93 cities listed in Spain, Alcalá de Henares ranks joint 31st of 93 for the warmest September highs and joint 39th of 93 for the driest September (rainfall, lowest first). The mean September high of those 93 cities is 25.5°C; Alcalá de Henares is 1.0°C warmer than that mean.
From September to October, average highs fall by 6.5°C to 20.0°C, and monthly rainfall rises from 28 mm to 64 mm.
The annual picture
September in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Alcalá de Henares climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 9.7°C1.1°C | 1.1°C | 42 | 7.7 | 9.610 h |
| February | 11.7°C1.6°C | 1.6°C | 35 | 6.3 | 10.611 h |
| March | 15.5°C4.0°C | 4.0°C | 44 | 7.7 | 11.912 h |
| April | 17.9°C6.4°C | 6.4°C | 56 | 8.7 | 13.313 h |
| May | 22.4°C10.3°C | 10.3°C | 50 | 8.5 | 14.414 h |
| June | 28.2°C15.1°C | 15.1°C | 23 | 4.0 | 15.015 h |
| July | 32.3°C18.4°C | 18.4°C | 7.6 | 1.7 | 14.815 h |
| August | 32.0°C18.3°C | 18.3°C | 12 | 2.7 | 13.814 h |
| September, selected | 26.6°C14.4°C | 14.4°C | 28 | 4.5 | 12.513 h |
| October | 20.0°C9.8°C | 9.8°C | 64 | 8.3 | 11.211 h |
| November | 13.6°C5.0°C | 5.0°C | 58 | 8.1 | 10.010 h |
| December | 10.2°C2.0°C | 2.0°C | 47 | 7.7 | 9.39 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
September in nearby cities
- Torrejón de Ardoz in SeptemberSpain · 10 kmHigh 26.5°C · Low 14.5°C · 23 mm rain
- Coslada in SeptemberSpain · 18 kmHigh 26.5°C · Low 14.8°C · 23 mm rain
- Guadalajara, Spain in SeptemberSpain · 23 kmHigh 26.0°C · Low 13.6°C · 23 mm rain
- San Sebastián de los Reyes in SeptemberSpain · 24 kmHigh 25.8°C · Low 13.6°C · 20 mm rain
- Alcobendas in SeptemberSpain · 25 kmHigh 25.8°C · Low 13.7°C · 20 mm rain
- Chamartín in SeptemberSpain · 27 kmHigh 25.6°C · Low 13.5°C · 20 mm rain
- Madrid in SeptemberSpain · 30 kmHigh 26.2°C · Low 14.4°C · 20 mm rain
- Getafe in SeptemberSpain · 37 kmHigh 26.7°C · Low 14.8°C · 22 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Alcalá de Henares) is explained once on the Alcalá de Henares year overview and on the Sources, method and limits page.